[ARM][4/4] Simplify checks for CONST_INT_P and comparison against 1/0

	* config/arm/neon.md (ashldi3_neon):  Replace comparison of INTVAL of
	operands[2] against 1 with comparison against CONST1_RTX.
	(<shift>di3_neon): Likewise.
	* config/arm/predicates.md (const0_operand): Replace with comparison
	against CONST0_RTX.

From-SVN: r236641

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index a932987aab9bf4d5eb37f6ea59a740acaaebe6d4..a76178edd00d3db55c05f54e931a6fdf18b1e872 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,11 @@
+2016-05-24  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
+
+       * config/arm/neon.md (ashldi3_neon):  Replace comparison of INTVAL of
+       operands[2] against 1 with comparison against CONST1_RTX.
+       (<shift>di3_neon): Likewise.
+       * config/arm/predicates.md (const0_operand): Replace with comparison
+       against CONST0_RTX.
+
 2016-05-24  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
 
        * config/arm/arm.md (ashldi3): Replace comparison of INTVAL of

diff --git a/gcc/config/arm/neon.md b/gcc/config/arm/neon.md
index 21eed7bb99c48d508a1c8be9c8f992ae07f3d550..e2fdfbb04621ee6f8603849be089e8bce624214d 100644 (file)
--- a/gcc/config/arm/neon.md
+++ b/gcc/config/arm/neon.md
@@ -1082,7 +1082,7 @@
       }
     else
       {
-       if (CONST_INT_P (operands[2]) && INTVAL (operands[2]) == 1
+       if (operands[2] == CONST1_RTX (SImode)
            && (!reg_overlap_mentioned_p (operands[0], operands[1])
                || REGNO (operands[0]) == REGNO (operands[1])))
          /* This clobbers CC.  */
@@ -1184,7 +1184,7 @@
       }
     else
       {
-       if (CONST_INT_P (operands[2]) && INTVAL (operands[2]) == 1
+       if (operands[2] == CONST1_RTX (SImode)
            && (!reg_overlap_mentioned_p (operands[0], operands[1])
                || REGNO (operands[0]) == REGNO (operands[1])))
          /* This clobbers CC.  */

diff --git a/gcc/config/arm/predicates.md b/gcc/config/arm/predicates.md
index 4b4b4fe9e45a0957bf8f5b19633c99b2a7b34eb8..4504ecc2810ced15cb70ab93487635c7dafa9972 100644 (file)
--- a/gcc/config/arm/predicates.md
+++ b/gcc/config/arm/predicates.md
@@ -141,8 +141,7 @@
        (match_test "const_ok_for_arm (~INTVAL (op))")))
 
 (define_predicate "const0_operand"
-  (and (match_code "const_int")
-       (match_test "INTVAL (op) == 0")))
+  (match_test "op == CONST0_RTX (mode)"))
 
 ;; Something valid on the RHS of an ARM data-processing instruction
 (define_predicate "arm_rhs_operand"